BIOS Programming / Flashing

Expert BIOS repair and flashing services in Nairobi. Fast, reliable, and professional.

BIOS (basic input/output system) is the program a computer's microprocessor uses to start the computer system after it is powered on. It also manages data flow between the computer's operating system (OS) and attached devices, such as the hard disk, video adapter, keyboard, mouse and printer.

The term BIOS was first coined in 1975 by American computer scientist Gary Kildall. It was incorporated into IBM's first personal computer in 1981 and, in the years to come, gained popularity within other PCs, becoming an integral part of computers for some time.

How BIOS Works

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Firmware on EPROM Chip
BIOS comes included with computers as firmware on a chip on the motherboard. When users turn on their computer, the microprocessor passes control to the BIOS program, which is always located at the same place on EPROM.
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Boot Process
When BIOS boots up a computer, it first determines whether all necessary attachments are in place and operational. After testing boot devices, BIOS loads the OS into RAM from a hard disk or diskette drive.

The 4 Functions of BIOS

BIOS identifies, configures, tests and connects computer hardware to the OS immediately after a computer is turned on. The combination of these steps is called the boot process.

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POST
Power-on self-test — tests hardware before loading OS
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Bootstrap Loader
Locates the operating system
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Software/Drivers
Finds software and drivers that interface with the OS
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CMOS Setup
Configuration program for hardware and system settings

BIOS Manufacturers

Many manufacturers produce motherboards with BIOS chips in them. Some examples include:

  • AMI
  • Asus
  • Foxconn
  • Hewlett Packard (HP)
  • Ricoh
  • Phoenix Technologies
  • Compaq

Symptoms of a Corrupted BIOS

The most common symptoms of a corrupted BIOS in a laptop or any other computer are:

  • The laptop stopped working after the BIOS was updated
  • The laptop just died. No lights and no signs of life
  • Laptop turns on and then off
  • Computer thinks its temperature is too high
  • Laptop turns on but the screen remains black
  • One internal accessory of the computer stops working
  • Sometimes the computer will not turn on
  • The fans operate at full speed all the time, even when the computer is cold

The same phenomena can happen to a MacBook, iMac, Mini-Mac and to any other desktop PC or laptop.

BIOS Programming / Flashing Services

Work carried out on a corrupt BIOS Chip includes but is not limited to:

1
Flashing BIOS on a Chip

You bring the chip and the file, and we handle the flashing process.

2
Chip Removal and Re-soldering

Careful removal and re-soldering of the BIOS chip to the motherboard.

3
Laptop Disassembling and Re-assembling

You'll bring the BIOS file, and we handle the full disassembly and re-assembly.

4
Full Service

Disassembling, cleaning the cooling system, chip removal, flashing the new BIOS file, re-soldering, re-assembling, and ensuring everything works.